<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title></title>
 <script src="../../scripts/jquery-1.3.1.js" type="text/javascript"></script>
 <script src="lib/jquery.validate.js" type="text/javascript"></script>
<style type="text/css">
* { font-family: Verdana; font-size: 96%; }
label { width: 10em; float: left; }
label.error { float: none; color: red; padding-left: .5em; vertical-align: top; }
p { clear: both; }
.submit { margin-left: 12em; }

em { font-weight: bold; padding-right: 1em; vertical-align: top; }
em.error {
  background:url("images/unchecked.gif") no-repeat 0px 0px;
  padding-left: 16px;
}
em.success {
  background:url("images/checked.gif") no-repeat 0px 0px;
  padding-left: 16px;
}

</style>
  <script type="text/javascript">
  $(document).ready(function(){

	//自定义一个验证方法
	$.validator.addMethod(
	"formula", //验证方法名称
	function(value, element, param) {//验证规则
		return value == eval(param);
	}, 
	'请正确输入数学公式计算后的结果'//验证提示信息
	);

	$("#commentForm").validate({
		rules: {
			username: {
				required: true,
				minlength: 2
			},
			email: {
				required: true,
				email: true
			},
			url:"url",
			comment: "required",
			valcode: {
				formula: "7+9"	
			}
		},
		
		messages: {
			username: {
				required: '请输入姓名',
				minlength: '请至少输入两个字符'
			},
			email: {
				required: '请输入电子邮件',
				email: '请检查电子邮件的格式'
			},
			url: '请检查网址的格式',
			comment: '请输入您的评论'
		},	
		
		errorElement: "em",				//用来创建错误提示信息标签
		success: function(label) {			//验证成功后的执行的回调函数
			//label指向上面那个错误提示信息标签em
			label.text(" ")				//清空错误提示消息
				.addClass("success");	//加上自定义的success类
		}


	  });

  });
  </script>
  
</head>
<body>
  

 <form class="cmxform" id="commentForm" method="get" action="">
 <fieldset>
   <legend>一个简单的验证带验证提示的评论例子</legend>
   <p>
     <label for="cusername">姓名</label>
     <em>*</em><input id="cusername" name="username" size="25" />
   </p>
   <p>
     <label for="cemail">电子邮件</label>
     <em>*</em><input id="cemail" name="email" size="25"  />
   </p>
   <p>
     <label for="curl">网址</label>
     <em>  </em><input id="curl" name="url" size="25"  value="" />
   </p>
   <p>
     <label for="ccomment">你的评论</label>
     <em>*</em><textarea id="ccomment" name="comment" cols="22"></textarea>
   </p>
   <p>
     <label for="cvalcode">验证码</label>
     <input id="cvalcode" name="valcode" size="25"  value="" />=7+9
   </p>
   <p>
     <input class="submit" type="submit" value="提交"/>
   </p>
 </fieldset>
 </form>
</body>
</html>
